Alraja, Mansour Naser, Samir Hammami, Billal Chikhi, and Samia Fekir. 2016. “The Influence of Effort and Performance Expectancy on Employees to Adopt E-Government: Evidence from Oman”. International Review of Management and Marketing 6 (4):930-34. https://www.econjournals.com/index.php/irmm/article/view/3187.